Street-sweeper.



H. PBZZBTTI. STREET SWEEPEB.

APPLIGATIGN FILED DEO. 14, 1912.

Patente@ Jan. 2'?, 1,914.

4.- SIEEBTS-SHBET l.

E. PEZZETTI.

STREET SWEEPBIL.

APPLICATION HLED 13110.14, 1912.

L'. Patented Jan. 27, 1914.

4 SHEETS-SHEET 2.

i H. PEZZETTI.

STREET SWBEPER.

APPLICATION FILED 13110.14, 1912.

/Paned Jan. 2?, 1914.

/4 SHEETS-SHEET 4.

l 559/15/ /czzeff'f @Wi Qwaww j Arme/ver.

a bell-crank 32 and link 33, alever 34 and a chain attached to a handle 36 so that by operating the handle 36 the clutch can be shifted against its spring 31 in order to make the sprocket drive operative or in operative. The shaft 27 by gear Wheels 3T drives the shaft 3S and there is a sprocket Wheel on the shaft 38 which by means of a sprocket chain 39 drives a sprocket wheel on the broom shaft and thus the broom is revolved. The shaft 238 drives the shat't 40 which is journaled in the frame, or more accurately in brackets connected therewith, by means of the sprocket chains and wheels 41. The shaft 40 is at the boot of the elevator and it is provided with the sprocket Wheels 42 Which drive the latter. The shaft 40 by means of gear Wheels 43 drives the roller 44 around which the apron 6 passes so that the apron itselt` is driven. The various guide rolls 45for the elevator are mounted in brackets 46 that are carried by the frame ofthe machine.

` The body 10 is of the self-dumping variety. It is provided with hinge members 47 and they are pivotedito the rails 1 by a rod 48, the purpose of this pivotal connection is to prevent end-wise movement of the body in respect to the frame and to permit the body to dump, which it does by reason of chairs 49 which rest on the angle frames l between the flange of the angle Virons and clips 50 secured thereto. When the wagon is dumped the chair turns about its rear edge, which is alined with the rod or pivot 48, and the rear end of the chair abuts on the inclined surface 51 at the endA of the rails 1, forming a stop. In turning the body is carried by the rear edge of the chair'rather than by the pivot 48. When the body is loaded its load is so distributed that -it tends to turn and dump. The latch 52 serves to prevent the body from dumping. The latch is centrally pivoted and one end is operated on by the spring 53. The other end is connected by a chain 54 with the foot lever 55, so that when the lever 55 is pushedthe latch releases the body; that is, its lower end slips olf the front end of the body. The chutel 9, 'whejii'fiftlie body is dumped, may turn into the position indicated in Fig. 2, there being a suitable opening in the top of the body for the chute to enter.

The tail-board 56 is earried'by arms 57 centrally pivoted to the body. Links 5S connect these arms with other arms 59 pivoted to the frame and the arms '59 are connected by links 60 with the body so that when the body dumps the tail-board occupies the position shown in Fig. 2. After dumping, the body is returned to its initial position by arms 6l pivoted to the frame, or more accurately to the bolster of the rear axle. These arms are connected by links 62 to the arm 63 on a shaft 64 pivoted to thev 'frame and provided With an arm' 65 to Which is connected a link 66 that is connected with a lever 67 so that when the lever 67 is pulled the free ends of the arm 61 turn upward and push the body back to its original position.-

IVnat I claim as new and desire -to secure by Letters Patent is: v

A street sweeper comprising the combination of a wheel frame, a comb between the wheels, a straight broom Within the Wheel base and in rear of the comb, an upright" elevator and its boot arranged centrally of the frame, a rearwardly open hood having' straight side Walls extending from the ends of the broom inward to the entrance of the upright elevator foot, and a traveling apron constituting the floor of the hood and of sub-V stantially the Width of the broom and projecting at the front outside of the straight side Walls of the hood and operating in conjunction with the straight side Walls throughout their length to directly receive sweepings and deliver them without accumulation in the hood.

In testimony whereof I have hereunto signed my name in the presence 0f witnesses.

HENRY PEZZE'ITI.

Witnesses:

CLIFFORD K. CAssEL, FRANK E. FRENCH. 

